Welcome to the store! Keyboard: Wireless Carrier Frequency: 2402MHz-2480MHz Operating Frequency: 16, automatic frequency hopping Keyboard rated operating current: 28mA/3V Tracking System: Optical Resolution: 1000CPI Photoelectric sensor cannot work on clean mirror or glass Battery life may vary with individual usage < p>Do not dispose of the battery or throw it into fire. When replacing the battery, please put the old battery in the battery recycling box System Support: Windows Me/2000/XP/Vista operating system and an unoccupied USB interface Mouse: Mouse rated operating voltage: 1.5-3V Mouse rated operating current: 10-15mA Mouse resolution: 800-1200 DPI Wireless Working Channels: 16, automatic frequency hopping Wireless operating frequency: 2.402-2.480GHz Wireless transmission speed: 1-2M bps Maximum effective distance: 6-10 meters Max Acceleration: 28 inches/second Image processing: 3000 fps Mouse button life: 3-5 million times Operating temperature: - 15℃ to 60℃ Keyboard size: 36.8*14.3*2.63cm Keyboard net weight: 390G (receiver) including USB) Keyboard operating voltage: 3.0V Mouse Size: 11.6*6.6*3.5cm Mouse net weight: 63±2g Mouse DPI: 800, 1200, 1600 Mouse operating voltage: 1.5V. Wake up method: press any key Service time: 3 million visits Product Material: ABS+PC Transmission Distance: